Nissan X-Trail 32. Instruction — part 837
SYSTEM
EC-477
< SYSTEM DESCRIPTION >
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EVAPORATIVE EMISSION SYSTEM : System Description
INFOID:0000000010986247
SYSTEM DIAGRAM
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the
engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the
engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is
proportionally regulated as the air flow increases.
EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and
idling.
CAN COMMUNICATION
CAN COMMUNICATION : System Description
INFOID:0000000010986248
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
JSBIA0114GB
PBIB3039E
EC-478
< SYSTEM DESCRIPTION >
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SYSTEM
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to
, about CAN communication for detail.
ECO MODE CONTROL
ECO MODE CONTROL : System Description
INFOID:0000000010986249
SYSTEM DESCRIPTION
ECM receives an ECO mode signal from TCM via CAN communication and improves the fuel economy by
controlling the throttle movement to less than usual.
For details of ECO mode system, refer to
DMS-7, "ECO MODE CONTROL : System Description"
.
OPERATION
EC-479
< SYSTEM DESCRIPTION >
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OPERATION
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD) : Switch Name and Function
INFOID:0000000010986250
SWITCHES AND INDICATORS
SET SPEED RANGE
ASCD system can be set the following vehicle speed.
SWITCH OPERATION
Refer to
EC-473, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description"
ing instructions.
On the combination meter
On the steering wheel
ASCD indicator
CANCEL switch
RES / + switch
(RESUME/ACCELERATE)
SET / - switch
(SET/COAST)
MAIN switch
JSBIA4588ZZ
Minimum speed (Approx.)
Maximum speed (Approx.)
40 km/h (25 MPH)
171 km/h (106 MPH)
Item
Function
CANCEL switch
Cancels the cruise control driving.
ACCEL/RES switch
• Resumes the set speed.
• Increases speed incrementally during cruise control driving.
COAST/SET switch
• Sets desired cruise speed.
• Decreases speed incrementally during cruise control driving.
MAIN switch
Master switch to activate the ASCD system.
EC-480
< SYSTEM DESCRIPTION >
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Diagnosis Description
INFOID:0000000010986251
This system is an on board diagnostic system that records exhaust emission-related diagnostic information
and detects a sensors/actuator-related malfunction. A malfunction is indicated by the malfunction indicator
lamp (MIL) and stored in control module memory as a DTC. The diagnostic information can be obtained with
the diagnostic tool (GST: Generic Scan Tool).
GST (Generic Scan Tool)
INFOID:0000000010986252
When GST is connected with a data link connector equipped on the vehicle side, it will communicate with the
control module equipped in the vehicle and then enable various kinds of diagnostic tests. Refer to
.
NOTE:
Service $0A is not applied for regions where it is not mandated.
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